飞控-77: 74 std flight-controller projects ingested

Topic-pull from local listing index (`name OR introduction` contains
飞控). 77 std hits in oshwhub_listing_full.jsonl, minus 2 already
crawled = 75 attempted; 74 OK + 1 hard fail (`m1_mh743_ada_v4`,
listing entry missing `count.like`).

dev1 walltime: Step 1 ~12s, Step 4 ~80s (concurrency=5).
License mix: 65% GPL 3.0, 11% Public Domain, 11% MIT, 4% CC variants.

3 partial dirs (Step 1 KeyError on missing `count.like`) dropped — to
be re-fetched after a follow-up crawler patch makes count fields
defensive against listing-index outliers.

Source backfill 74/74 OK, total +46 MB.

data/raw/oshwhub/03983a6a52df4d9d8115a4a0fe8ca830/metadata.json

@@ -0,0 +1,61 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/yuanfpv/f405-wing-usb",
+  "project_id": "03983a6a52df4d9d8115a4a0fe8ca830",
+  "title": "F405-Wing-usb",
+  "description_short": "Flyingrc F405-Wing 飞控usb小板",
+  "description_path": "description.md",
+  "author": {
+    "username": "yuanfpv",
+    "display_name": "YuanCoding",
+    "user_id": "c60180d1a88a4d65bf0ecc47cc08a522"
+  },
+  "license": "GPL 3.0",
+  "tags": [],
+  "created_at": "2023-02-15T06:12:55.000Z",
+  "updated_at": "2023-02-15T15:41:38.000Z",
+  "published_at": "2023-02-16T01:34:23.000Z",
+  "crawled_at": "2026-04-30T10:49:21.244212+00:00",
+  "metrics": {
+    "likes": 3,
+    "stars": 2,
+    "forks": 12,
+    "views": 1780,
+    "watch": 0,
+    "comments": 0
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/avatars/2023/2/09w6aWWq5OWIWyVL8UYZsCe20GnnFY4Wr11pF0MY.png",
+    "path": null
+  },
+  "files": [],
+  "raw_fields": {
+    "path": "yuanfpv/f405-wing-usb",
+    "grade": 1,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "d4590445415e4388895d3d2d0b978d91",
+      "docType": 1,
+      "master": "d156b54776c447ee8fcd7d49729edef7",
+      "path": "source/d4590445415e4388895d3d2d0b978d91.json",
+      "size": 40083,
+      "sha256": "d1ab6ecbd69f0f3e0ad84074e4f1797453372958362fc1eeaa43ad444c40f4fd"
+    },
+    {
+      "doc_uuid": "3fbc835355474c6aa51630dbc2a5b291",
+      "docType": 3,
+      "master": "1a8680a2eaa14e248fac3036d89f1b9a",
+      "path": "source/3fbc835355474c6aa51630dbc2a5b291.json",
+      "size": 137036,
+      "sha256": "102cae31622610ab53d7b1960fe79b225c65724fe2ef2e9ad432f66176709c17"
+    }
+  ],
+  "editor_version": "6.5.23"
+}